mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-04 13:29:59 -05:00
merge glitch-free branch back into trunk
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2445 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering
parent
91f092eadc
commit
045c1d602d
189 changed files with 12559 additions and 4959 deletions
349
src/modules/module-device-restore.c
Normal file
349
src/modules/module-device-restore.c
Normal file
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@ -0,0 +1,349 @@
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/* $Id$ */
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/***
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This file is part of PulseAudio.
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Copyright 2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <gdbm.h>
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#include <pulse/xmalloc.h>
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#include <pulse/volume.h>
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#include <pulse/timeval.h>
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#include <pulse/util.h>
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#include <pulsecore/core-error.h>
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#include <pulsecore/module.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/modargs.h>
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#include <pulsecore/log.h>
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#include <pulsecore/core-subscribe.h>
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#include <pulsecore/sink-input.h>
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#include <pulsecore/source-output.h>
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#include <pulsecore/namereg.h>
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#include "module-device-restore-symdef.h"
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PA_MODULE_AUTHOR("Lennart Poettering");
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PA_MODULE_DESCRIPTION("Automatically restore the volume/mute state of devices");
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PA_MODULE_VERSION(PACKAGE_VERSION);
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PA_MODULE_LOAD_ONCE(TRUE);
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#define SAVE_INTERVAL 10
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static const char* const valid_modargs[] = {
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NULL,
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};
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struct userdata {
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pa_core *core;
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pa_subscription *subscription;
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pa_hook_slot *sink_fixate_hook_slot, *source_fixate_hook_slot;
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pa_time_event *save_time_event;
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GDBM_FILE gdbm_file;
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};
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struct entry {
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pa_cvolume volume;
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int muted;
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};
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static void save_time_callback(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) {
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struct userdata *u = userdata;
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pa_assert(a);
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pa_assert(e);
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pa_assert(tv);
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pa_assert(u);
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pa_assert(e == u->save_time_event);
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u->core->mainloop->time_free(u->save_time_event);
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u->save_time_event = NULL;
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gdbm_sync(u->gdbm_file);
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pa_log_info("Synced.");
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}
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static void subscribe_callback(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
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struct userdata *u = userdata;
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struct entry entry;
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char *name;
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datum key, data;
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pa_assert(c);
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pa_assert(u);
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if (t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW) &&
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t != (PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE) &&
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t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_NEW) &&
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t != (PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE))
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return;
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if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK) {
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pa_sink *sink;
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if (!(sink = pa_idxset_get_by_index(c->sinks, idx)))
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return;
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name = pa_sprintf_malloc("sink:%s", sink->name);
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entry.volume = *pa_sink_get_volume(sink);
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entry.muted = pa_sink_get_mute(sink);
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} else {
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pa_source *source;
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pa_assert((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE);
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if (!(source = pa_idxset_get_by_index(c->sources, idx)))
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return;
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name = pa_sprintf_malloc("source:%s", source->name);
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entry.volume = *pa_source_get_volume(source);
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entry.muted = pa_source_get_mute(source);
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}
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key.dptr = name;
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key.dsize = strlen(name);
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data = gdbm_fetch(u->gdbm_file, key);
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if (data.dptr) {
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if (data.dsize == sizeof(struct entry)) {
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struct entry *old = (struct entry*) data.dptr;
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if (pa_cvolume_valid(&old->volume)) {
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if (pa_cvolume_equal(&old->volume, &entry.volume) &&
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!old->muted == !entry.muted) {
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pa_xfree(data.dptr);
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pa_xfree(name);
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return;
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}
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} else
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pa_log_warn("Invalid volume stored in database for device %s", name);
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} else
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pa_log_warn("Database contains entry for device %s of wrong size %lu != %lu", name, (unsigned long) data.dsize, (unsigned long) sizeof(struct entry));
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pa_xfree(data.dptr);
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}
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data.dptr = (void*) &entry;
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data.dsize = sizeof(entry);
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pa_log_info("Storing volume/mute for device %s.", name);
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gdbm_store(u->gdbm_file, key, data, GDBM_REPLACE);
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if (!u->save_time_event) {
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struct timeval tv;
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pa_gettimeofday(&tv);
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tv.tv_sec += SAVE_INTERVAL;
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u->save_time_event = u->core->mainloop->time_new(u->core->mainloop, &tv, save_time_callback, u);
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}
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pa_xfree(name);
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}
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static struct entry* read_entry(struct userdata *u, char *name) {
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datum key, data;
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struct entry *e;
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pa_assert(u);
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pa_assert(name);
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key.dptr = name;
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key.dsize = strlen(name);
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data = gdbm_fetch(u->gdbm_file, key);
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if (!data.dptr)
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goto fail;
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if (data.dsize != sizeof(struct entry)) {
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pa_log_warn("Database contains entry for device %s of wrong size %lu != %lu", name, (unsigned long) data.dsize, (unsigned long) sizeof(struct entry));
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goto fail;
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}
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e = (struct entry*) data.dptr;
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if (!(pa_cvolume_valid(&e->volume))) {
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pa_log_warn("Invalid volume stored in database for device %s", name);
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goto fail;
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}
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return e;
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fail:
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pa_xfree(data.dptr);
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return NULL;
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}
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static pa_hook_result_t sink_fixate_hook_callback(pa_core *c, pa_sink_new_data *new_data, struct userdata *u) {
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char *name;
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struct entry *e;
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pa_assert(new_data);
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name = pa_sprintf_malloc("sink:%s", new_data->name);
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if ((e = read_entry(u, name))) {
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if (e->volume.channels == new_data->sample_spec.channels) {
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pa_log_info("Restoring volume for sink %s.", new_data->name);
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pa_sink_new_data_set_volume(new_data, &e->volume);
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}
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pa_log_info("Restoring mute state for sink %s.", new_data->name);
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pa_sink_new_data_set_muted(new_data, e->muted);
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pa_xfree(e);
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}
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pa_xfree(name);
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return PA_HOOK_OK;
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}
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static pa_hook_result_t source_fixate_hook_callback(pa_core *c, pa_source_new_data *new_data, struct userdata *u) {
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char *name;
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struct entry *e;
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pa_assert(new_data);
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name = pa_sprintf_malloc("source:%s", new_data->name);
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if ((e = read_entry(u, name))) {
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if (e->volume.channels == new_data->sample_spec.channels) {
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pa_log_info("Restoring volume for source %s.", new_data->name);
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pa_source_new_data_set_volume(new_data, &e->volume);
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}
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pa_log_info("Restoring mute state for source %s.", new_data->name);
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pa_source_new_data_set_muted(new_data, e->muted);
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pa_xfree(e);
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}
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pa_xfree(name);
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return PA_HOOK_OK;
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}
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int pa__init(pa_module*m) {
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pa_modargs *ma = NULL;
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struct userdata *u;
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char *fname, *runtime_dir;
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char hn[256];
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pa_sink *sink;
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pa_source *source;
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uint32_t idx;
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pa_assert(m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log("Failed to parse module arguments");
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goto fail;
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}
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u = pa_xnew(struct userdata, 1);
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u->core = m->core;
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u->save_time_event = NULL;
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u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK|PA_SUBSCRIPTION_MASK_SOURCE, subscribe_callback, u);
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u->sink_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_FIXATE], (pa_hook_cb_t) sink_fixate_hook_callback, u);
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u->source_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_FIXATE], (pa_hook_cb_t) source_fixate_hook_callback, u);
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m->userdata = u;
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if (!pa_get_host_name(hn, sizeof(hn)))
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goto fail;
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if (!(runtime_dir = pa_get_runtime_dir()))
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goto fail;
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fname = pa_sprintf_malloc("%s/device-volumes.%s.gdbm", runtime_dir, hn);
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pa_xfree(runtime_dir);
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if (!(u->gdbm_file = gdbm_open(fname, 0, GDBM_WRCREAT, 0600, NULL))) {
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pa_log("Failed to open volume database '%s': %s", fname, gdbm_strerror(gdbm_errno));
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pa_xfree(fname);
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goto fail;
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}
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pa_log_info("Sucessfully opened database file '%s'.", fname);
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pa_xfree(fname);
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for (sink = pa_idxset_first(m->core->sinks, &idx); sink; sink = pa_idxset_next(m->core->sinks, &idx))
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subscribe_callback(m->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_NEW, sink->index, u);
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for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
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subscribe_callback(m->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_NEW, source->index, u);
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pa_modargs_free(ma);
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return 0;
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fail:
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pa__done(m);
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if (ma)
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pa_modargs_free(ma);
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return -1;
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}
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void pa__done(pa_module*m) {
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struct userdata* u;
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pa_assert(m);
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if (!(u = m->userdata))
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return;
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if (u->subscription)
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pa_subscription_free(u->subscription);
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if (u->sink_fixate_hook_slot)
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pa_hook_slot_free(u->sink_fixate_hook_slot);
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if (u->source_fixate_hook_slot)
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pa_hook_slot_free(u->source_fixate_hook_slot);
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if (u->save_time_event)
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u->core->mainloop->time_free(u->save_time_event);
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if (u->gdbm_file)
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gdbm_close(u->gdbm_file);
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pa_xfree(u);
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}
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